<template>
  <div class="permission-container">
    <div class="app-container">
      <!-- 表格 -->
      <el-card>
        <div style="text-align: right; margin-bottom: 20px">
          <el-button
            type="primary"
            size="small"
            @click="hAdd(1, '0')"
          >添加权限</el-button>
        </div>
        <el-table border :data="list" row-key="id">
          <el-table-column label="名称" prop="name" />
          <el-table-column label="标识" prop="code" />
          <el-table-column label="描述" prop="description" />
          <el-table-column label="操作">
            <template slot-scope="scope">
              <!-- 只有页面级才有权限添加 -->
              <el-button
                v-if="scope.row.type === 1"
                v-allow="'permiss-add'"
                type="text"
                @click="hAdd(2, scope.row.id)"
              >添加</el-button>
              <el-button
                v-allow="'permiss-add'"
                type="text"
                @click="hEdit(scope.row.id)"
              >编辑</el-button>
              <el-button type="text" @click="del(scope.row.id)">删除</el-button>
            </template>
          </el-table-column>
        </el-table>
      </el-card>
    </div>
    <el-dialog
      :close-on-click-modal="false"
      :close-on-press-escape="false"
      :visible.sync="showDialog"
      :title="isEdit ? '编辑' : '添加'"
      @close="hClose"
    >
      <!-- 表单内容 -->
      <el-form
        ref="refForm"
        :rules="rules"
        :model="formData"
        label-width="100px"
      >
        <el-form-item label="权限名称" prop="name">
          <el-input v-model.trim="formData.name" />
        </el-form-item>
        <el-form-item label="权限标识" prop="code">
          <el-input v-model.trim="formData.code" />
        </el-form-item>
        <el-form-item label="权限描述">
          <el-input v-model="formData.description" />
        </el-form-item>
        <el-form-item label="权限启用">
          <el-switch
            v-model="formData.enVisible"
            active-text="启用"
            active-value="1"
            inactive-text="不启用"
            inactive-value="0"
          />
        </el-form-item>
      </el-form>

      <template #footer>
        <div style="text-align: right">
          <el-button @click="showDialog = false">取消</el-button>
          <el-button type="primary" @click="hSave">确定</el-button>
        </div>
      </template>
    </el-dialog>
  </div>
</template>

<script>
import {
  getPermissionList,
  addPermission,
  delPermission,
  getPermissionDetail,
  updatePermission
} from '@/api/permisson'
import { tranListToTreeData } from '@/utils/index'

export default {
  name: 'Permission',
  data() {
    // const validCode = (rule, value, callback) => {
    //   const obj = this.formData
    //   if (!this.isEdit) return
    //   obj
    //     .filter((item) => item.id !== this.formData.id)
    //     .map((it) => it.code)
    //     .includes(value)
    //     ? callback(new Error(value + '已经占用'))
    //     : callback()
    // }

    return {
      list: [],
      showDialog: false, // 是否显示弹层
      isEdit: false,
      formData: {
        name: '', // 名称
        code: '', // 权限标识
        description: '', // 描述
        enVisible: '0', // 开启
        pid: '', // 添加到哪个节点下
        type: '' // 类型
      },
      rules: {
        name: [
          { message: '不能为空', required: true, trigger: 'blur' }
        ],
        code: [{ message: '不能为空', required: true, trigger: 'blur' }]
      }
    }
  },
  created() {
    this.loadPermissionList()
  },
  methods: {
    async loadPermissionList() {
      const res = await getPermissionList()
      console.log('从后端获取的数据的是', res)
      // 保存数据
      // 树结构
      this.list = tranListToTreeData(res.data)
    },
    hAdd(type, id) {
      this.showDialog = true
      // 记录当前添加的关键信息
      this.isEdit = false
      this.formData.type = type
      this.formData.pid = id
    },
    async doAdd() {
      try {
        const res = await addPermission(this.formData)
        console.log(res)
        this.loadPermissionList()
        this.$message.success('成功')
        this.showDialog = false
      } catch (err) {
        this.$message.error('失败')
      }
    },
    del(id) {
      this.$confirm('你确定要删除么?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      })
        .then(() => {
          this.doDel(id)
        })
        .catch(() => {})
    },
    async doDel(id) {
      const res = await delPermission(id)
      console.log(res)
      this.loadPermissionList()
    },
    async hEdit(id) {
      this.showDialog = true
      this.isEdit = true
      try {
        const res = await getPermissionDetail(id)
        console.log(res)
        this.formData = res.data
      } catch (err) {
        this.$message.error('失败')
      }
    },
    async doEdit() {
      try {
        const res = await updatePermission(this.formData)
        console.log(res)
        this.showDialog = false
        this.loadPermissionList()
        this.$message.success('成功')
      } catch (err) {
        this.$message.error('失败')
      }
    },
    hSave() {
      this.$refs.refForm.validate((valid) => {
        // valid && (this.isEdit ? this.doEdit() : this.doAdd())
        if (!valid) return
        this.isEdit ? this.doEdit() : this.doAdd()
      })
    },
    hClose() {
      // 1. 重置表单
      this.formData = {
        name: '', // 名称
        code: '', // 权限标识
        description: '', // 描述
        enVisible: '0', // 开启
        pid: '', // 添加到哪个节点下
        type: '' // 类型
      }
      // 2. 清空校验
      this.$refs.refForm.resetFields()
    }
  }
}
</script>
